WELCOME TO GRADE 4!! EXPLORE THE SUBJECT TABS TO DISCOVER WHAT YOU ARE LEARNING THIS YEAR!!
LI4.1: Investigate the characteristics and physical properties of natural and artificial sources of light in the environment.
a) Differentiate between natural (e.g., fire, sun, star, lightning, aurorae, fireflies, and bioluminescent fungi) and artificial (e.g., light bulb, street light, glow stick, LED, tanning lamp, and laser) sources of light in the environment.c) Examine the significance of light in First Nations and Métis stories, legends, and spirituality, including the role of fire, lightning, aurorae, and Thunderbird.
LI4.3: Assess personal, societal, and environmental impacts of light-related technological innovations including optical devices.
b) Assess positive and negative consequences of artificial sources of light (e.g., street light, automobile headlight, traffic light, emergency vehicle light, and lighted advertising sign) that have been designed to solve problems in the home, at school, and in the community.
Light is all around us, almost all of the time. What do you think science can tell us about light?
In this lesson you will be introduced to the importance of light throughout our history by reading and viewing First Nations stories and legends.
You will also be examining the importance of light in your own lives.
Watch the video below about how Raven Stole the Sun and the Introduction to Light video to help you understand how people tried to explain how light came to be and how it affects our lives.
Go to Google Classroom to complete the assignment called, "Introduction: Light in our Lives". When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
In this lesson we are continuing to investigate the different meanings of light and how we use light in our lives.
You will be learning how people throughout history explained their understanding of light by telling stories of the sun, moon, lightning, Aurora, and fire.
After learning about the natural sources of light you will be researching an artificial source of light and creating a slide presentation to explain more about the device.
Watch the videos below that explore natural and artificial sources of light as well as helps explain more about light energy.
Go to Google Classroom to complete the assignment called, "Lesson 1: Why is Light Special". When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.1: Investigate the characteristics and physical properties of natural and artificial sources of light in the environment.
d) Investigate the characteristics of light beams in air and water, including determining that light travels in straight lines, that light travels away from a source in all directions, and that light beams may change direction upon entering or leaving water.
In this lesson we will investigate the path that light travels.
To investigate the path that light travels you will be completing an experiment.
Watch the videos below that helps explain how light travels.
Go to Google Classroom to complete the assignment called, Lesson 2: "How Does Light Travel?". When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.2: Analyze how light interacts with different objects and materials to create phenomena such as shadows, reflection, refraction, and dispersion.
d)Design and carry out a fair test of the reflective properties of surfaces of different shapes and textures (e.g., mirrors, flat foil, crumpled foil, white paper, coloured paper, and spoons).
e) Develop simple conclusions about the reflective properties of surfaces of different shapes and textures based on observation and experimentation.
In this lesson you will be learning how light interacts with different objects to create reflections.
You also will be performing three activities to test the reflective properties of different surfaces.
Watch the two videos below that helps explain the reflective properties of light.
Go to Google Classroom to complete the assignment called, Lesson 3: "How Can Reflections Be Used?". When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.2: Analyze how light interacts with different objects and materials to create phenomena such as shadows, reflection, refraction, and dispersion.
g) Investigate how light interacts with optical devices such as kaleidoscopes, reading glasses, microscopes, periscopes, telescopes, and magnifying glasses.
LI4.3: Assess personal, societal, and environmental impacts of light-related technological innovations including optical devices.
h) Design, construct, and test a prototype of an optical device (e.g., periscope, telescope, and microscope) that performs a specific student-identified function.
i) Work with classmates to troubleshoot problems with a prototype of an optical device.
In this lesson you will learn how that many devices use light to operate. Any tool that uses or makes light is called an optical device.
You will be building your own periscope to learn how light and reflection can help us create a useful tool that helps us see.
Watch the videos below that help explain how light and mirrors can be used in devices and how periscopes work.
Go to Google Classroom to complete the assignment called, Lesson 4: "How Can Devices Use Light?". When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.2: Analyze how light interacts with different objects and materials to create phenomena such as shadows, reflection, refraction, and dispersion.
b) Investigate how light interacts with various objects to determine whether the objects cast shadows, allow light to pass, and/or reflect light.
c) Classify materials and objects as opaque, transparent, or translucent based on personal observations.
LI4.3: Assess personal, societal, and environmental impacts of light-related technological innovations including optical devices.
c) Assess the suitability of translucent, transparent, and opaque materials for specific applications (e.g., window, shower curtain, paper, light bulb, and frosted glass).
We have been learning about how light is reflected and how it is used to create many useful optical devices.
In this lesson you will be learning that light transmits through objects in different amounts. Materials are often chosen by people dependent on how much light can pass through.
You will be testing how much light transmits through materials. The three terms that are important to understand in this lesson are: transparent, translucent, and opaque.
Watch the videos below that help explain the difference between objects that are transparent, translucent, and opaque.
Go to Google Classroom to complete the assignment called, Lesson 5: "Transparent, Translucent, and Opaque". When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.1: Investigate the characteristics and physical properties of natural and artificial sources of light in the environment.
g) Predict changes in a shadow's location, shape, and relative size when an object is placed in different positions and orientations relative to a light source and surface (e.g., flashlight and puppet, and overhead projector and screen).
h) Collaboratively plan and carry out a procedure to determine changes in a shadow's location, shape, and relative size when an object is placed in different positions and orientations relative to a light source and screen.
In this lesson we are going to investigate the changes in a shadow's location, shape, and relative size when an object is placed in different positions relative to a light source.
We will be creating a shadow stage to explore how the position of a light source affects the location, shape, and size of a shadow.
Watch the videos below that help explain how shadows are created.
Go to Google Classroom to complete the assignment called, Lesson 6: "What Is a Shadow"? When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.2: Analyze how light interacts with different objects and materials to create phenomena such as shadows, reflection, refraction, and dispersion.
f) Demonstrate and describe how transparent media of different composition and shape (e.g., prisms, plastic blocks, glasses of water, and lenses) are used to change the direction of light.
You have been learning about how light can be reflected and how light can cause shadows.
In this lesson you will be learning how light can change what you see. You will be completing three experiments that help you understand how light can change its path.
Watch the videos below that help explain how shadows are created.
Go to Google Classroom to complete the assignment called, Lesson 7: "How Can Nature Change the Path of Light"? When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.2: Analyze how light interacts with different objects and materials to create phenomena such as shadows, reflection, refraction, and dispersion.
f) Demonstrate and describe how transparent media of different composition and shape (e.g., prisms, plastic blocks, glasses of water, and lenses) are used to change the direction of light.
LI4.3: Assess personal, societal, and environmental impacts of light-related technological innovations including optical devices.
e) Compare the functions of optical devices (e.g., magnifying glasses, eyeglasses, contact lenses, microscopes, and telescopes) that are designed to extend our ability to observe.
f) Evaluate the function and importance of eyeglasses and contact lenses for individuals with vision problems.
j) Describe practices that individuals and communities can take to help protect eyes and sight.
In the last lesson we learned how the path of light can be bent when light passes from air to water or from a cooler to a warmer temperature. The bending of light is called refraction.
In this lesson you will be investigating how lenses can also bend light. Lenses are very useful because they can help correct people's eyesight so they can see more clearly.
You will be completing three activities that help explain how lenses work. You will also be learning ways to keep your eyes safe.
Watch the videos below that explain how lenses work and how glasses can help improve a person's eyesight. The last video gives tips on how to protect your eyes from damage.
Go to Google Classroom to complete the assignment called, Lesson 8: "How Are Lenses Useful"? When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.2: Analyze how light interacts with different objects and materials to create phenomena such as shadows, reflection, refraction, and dispersion.
f) Demonstrate and describe how transparent media of different composition and shape (e.g., prisms, plastic blocks, glasses of water, and lenses) are used to change the direction of light.
h) Demonstrate the dispersion of white light into various colours using a prism, and draw simple conclusions about the composition of white light.
In the previous lessons we have learned that light interacts with different objects to create shadows, reflections and refractions or bending of light rays.
In this lesson we are learning how we can use a prism to disperse or spread out white light to create a rainbow.
In this assignment you will be exploring two ways to create your own rainbow.
Watch the videos below that explain how prisms work to create rainbows
Go to Google Classroom to complete the assignment called, Lesson 9: "Rainbows and Prisms". When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.2: Analyze how light interacts with different objects and materials to create phenomena such as shadows, reflection, refraction, and dispersion.
j) Experiment with mixing colours of light to create colours that meet a student-specified function (e.g., mood for a dance or dramatic production).
In the last lesson you learned how to use a prism to disperse visible light to create a rainbow. You also learned how rainbows occur in the sky after a rain.
In this lesson you will be experimenting with mixing colours of light and how colours can have different meanings depending on the culture of people.
In this assignment you will complete an activity where you will investigate what happens when colours of light mix and how a piece of coloured acetate can change what other colours look like.
Watch the videos below that explain the mixing of colours of light.
Go to Google Classroom to complete the assignment called, Lesson 10: How Do We Use Colour"? When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.1: Investigate the characteristics and physical properties of natural and artificial sources of light in the environment.
f) Identify positive (e.g., increased vitamin D production, happiness, and increased productivity) and negative (e.g., sunburn, skin cancer, and light pollution) consequences of exposure to natural and artificial sources of light.
LI4.2: Analyze how light interacts with different objects and materials to create phenomena such as shadows, reflection, refraction, and dispersion.
i) Identify characteristics and effects of radiation that are slightly below (i.e., infrared radiation) and slightly above (i.e., ultraviolet light) the frequencies of visible light.
We have been learning about how visible light can be reflected, refracted and dispersed.
In this lesson we will be exploring the types of energy that comes from the Sun.
You will be examining objects that emit ultraviolet light and investigating how we can protect ourselves from damage caused by ultraviolet light.
Watch the videos below that explain the different types of energy that come from the sun.
Go to Google Classroom to complete the assignment called, Lesson 11: What Is Light Energy"? When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).
LI4.3: Assess personal, societal, and environmental impacts of light-related technological innovations including optical devices.
a) Evaluate the suitability of different types of light sources based on criteria such as source of energy, area illuminated, cost, and intended use.
d) Compare the types of light sources used historically and currently in Saskatchewan homes and communities.
k) Assess methods of conserving energy through processes such as reducing the use of home lighting or using alternative types of light sources (e.g., fluorescent, compact fluorescent, and light- emitting diode).
Light is very important in our life and has been throughout history.
In this lesson we will be learning about how lighting has changed throughout history and researching the costs and benefits of different kinds of light bulbs.
Watch the videos below that explains the changes in the use of light throughout history and explains which light bulbs are better for the environment and are cost effective.
Go to Google Classroom to complete the assignment called, Lesson 12: "How Is Light Important in Your Life"? When you have finished the assignment turn it in for grading.
For extra science vocabulary practice go to Quizlet (Click on the button above).